Wire-twisting machine.



G. B. SMITH. WIRE TWISTING MACHINE. APPLICATION FILED JULY23, 1914.

Patented Dec. 28, 1915.

4 SHEETS-SHEET I.

o MW k .l WHW I Q N o 14 1 Inventor I h Attorneys Witnesses G. B. SMITH.

WIRE TWISTING MACHINE.

I I I APPLICATION FILED .IULYZ3, I914- 1.,165,550. Patented Dec. 28, 1915.

4 SHEETSSHEET 2.

Inventor e. B. SMITH.

WIRE TWISTING MACHINE.

APPLICATION FILED JULY 23. WW.

Patented Dec. 28, 1915.

.lnventor Attorneys 4 SHEETS-SHEET 3- witnesses G. B. SIVHTH.

WIRE TWISTING MACHINE.

APPLICATION FILED lULY23, 1914.

4 SHEETSSHEET 4 Attorneys Pnfvnted Dec. 28, 1915.

Q h. 5 w m %M. 1 Y

GARY B. SMITH; CF CHICAGO. ELLIITOIS.

WIRE-TW'ISTING MACHINE.

Lil ("3.550.

Application filed July 23, 1914.

' Be it known that I, (hay B. SMITH. a citizen of the. baited-States. residing at (hieago. in the eounty of (00k and State of Illinois have invented a new and useful Wirw'lwisting Machine. of which the following is a specification.

The present invention appertains to wire working maehines. and aims to provide a novel and improved apparatus for twisting wire. whereby the same may be employed as stoekfor the manufacture ol"bed-springs or labrie. and the like.

The present invention eontemplates the provision of a wire, twisting maehine embodying a unique assemblage of parts. whereby a cont nuous length at twisted wire mav b e formed iii a eonvenient and ellieient manner. the maehine being entirely automatie. to twist the wire and to teedthe \vire outwardly a lter being twisted.

Another objeet of the invention is to provide novel means for taking up the twisted wire as it is delivered from the twisting meehanisni and for enabling the twisted wire to be drawn oil gradually or eontinle ously without. interfering with the operation of the wire twisting meehanism.

still further objeet oi the present in ven tion is to provide novel means for layin; and guiding the wires or strands. properly onto the mandrel wire or rod.

lt-is also within the seope of the invention to provide a wire twisting machine whieh will he improved generally in its eonstruetion and details. to enhanee the utility thereo'l'.

'iththe .ioregoing and other objeets in view. whieh will appear hs the deseription proeeeds. the inventiotti resides in the eombination and arrangeimnt of parts and in the details of eonstrurtion hereinafter de- "seribed and elaimed. it being understood that ehanges in the preeise embodiment of the invention herein diselosed ran be made within the seope of what is elainied without departing from the spirit of the in vention.

The invention is illustrated in the accomianvin drawin s. wherein 25 t Figure 1 is a side elevation of the maehine. with the transfer table or pan shown in section. Fig. 2 is a plan view of the maehine. portions being broken away. Fig. 3 is an enlarged side elevation of the maehine. portions being broken away and parts being Specification of Letters Patent.

Patented Bee. 1915. Serial no. 852.610.

.shown in seetion. view of the strueture. parts being broken away and parts being shown in section. Fig. .3 is an enlarged 'l'ragnuihtal detail illustrating a portion of the operating mechanism for the transfer tablewr pan. Fig. (5 is an enlarged detail of th'ent'orward end of the marlline: Fig. 7 is a fseetional detail taken on the line 1T--1T of Fig. 0. illustrating the 'manner oi anchoring the mandrel wire or rod. Fig. 5 is a rear view of the device or head for applying or leading the wires or strandsonto the mandrel wire. Fig. 9 is a horizontal seetion taken approximately on. the line U-Al of Fig. a. Fig. 10 is an enlarged perspeetive view of the supporting blot-k tor the wire applying deviee. Fig. 11 is an enlarged ])ti.\[)e(tl\'( view of theguide member For leading the wire onto the mandrel wire. Fig. 12 is an enlarged 't'ragmental seetion of the guide member. Fig. 13 is a seetional detail taken on the line 13--13 of Fig. 12. Fig. Ilis a perspeetive view illustrating the manner in whieh the wires or strands are applied to the mandrel wire. Fig; 15 is an enlarged seetional detail of the wire guiding member. Fig. 1G is a side elevation illustrating a modified form of wire twisting maehine. Fig. l? is a fragmental side elevation showing another moditieation.

ln earrying out the present invention, there is provided a suitable base or platform 1 upon which is mounted a suitable eleetrie motor 2 having a hollow armature shaft l. whieh is extended forwardly and journaled through a pedestal l mounted upon the base 1, and which earries at its forward end. the twisting head 5.

The twisting head 5 includes an annular body 6 whieh is secured rigidly upon the Forward end oi the tubular armature shaft 1. and a plurality of angular levers '7 having their elbows tulerumed to the annular iody or member ll. Frietion shoes or memhers H are eonneeted to the forward arms of the levers T by the links 9 whereby the Fig. l is an enlarged plan '7 by the toggle links 11, whereby when the collar 10 is moved forwardly it will swing the toggle links ll'beyond dead center so as to swing the forward arms of the levers 7 inwardly to move tie friction shoes twisting head is preferably inclosed by a housing or guard 12 surrounding the same and carried by the pedestal 4.

As a means for intermittently operating the clutch head :a worm wheel 13, of relatively large, diameter. -is journaled upon a standard or pedestal 14 carried by the base 1, and intermeshes with a worm 15 of relatively small diameter keyed or secured upon the armature shaft 3 betweenthe motor 2 and pedestal 4. The worm wheel 1-3carries or is formed at one side with a mutilated gear 16 havingdiametrically opposite teeth '17 adapted toalternately engage a mutilated pinion 18 which cotiperates with the mutilated "gear 16, whereby the pinion 18 will be given a turn of one-half a revolution for each half of a revolution of. the

worm wheel 13 and'gear 16, the teeth 17 being diametrically opposite each other to cause the pinion 18 to be rotated in an intermittent or step by step movement. The pinion 18 is provided with a wrist pin or crank 19 to which is connected a pitman 20, and the pitman 20 is connected to the rear end of a reciprocatory rod 21 slidably carried by the upper end of the pedestal 4 and having a forked member 22 at its forward end engaging withinthe groove of the collar 10, whereby the collar 10 may rotate with the shaft 3, but will be constrained to move longitudinally with the rod 21 when it is slid to actuate the clutch head.

The Wire or strand applying head or device 23 is carried by the rear end of a slide 24 mounted for reciprocatory movement upon a guide 24* carried by the base 1, and the slide 24 is reciprocated timely through the medium of a pitman 25 pivotally connected to the slide 24 and to a wrist pin 26, secured to the worm wheel 13 and gear 16. The wrist pin 26 is so located with respect to the teeth 17'of the mutilated gear 16 that the slide 24 will be moved from onc' 'nd of its stroke to the other, while the inion 18 is idle. In other words, the pinion .18 is adapted to. be actuated while the slide 24 is at the end of its stroke. 1

The wire applying device or head 23, which serves to lead or lay the wires or strands upon the mandrel wire or rod, as hereinafter set forth, embodies an upright block or body 27 secured upon the rear end of the slide 24 and having a rear horizontal slot 28 and an upwardly opening vertical bore or socket 29 intersecting the said slot at the point of convergence of its vertical or forward walls 30. The vertical pr. forward walls of the slot 28 diverge toward the opposite sides and forward .end of the block 27 from the bore or socket 29. and the bloc-k2? is provided with a passage 31 leading from the bore or socket '29 to the front side of the"block, said passage 31 being in the plane of the slot 28.

Fitted or seated within the bore of socket 29 is a guide 32 for the wires or strands, which guide has a dianietrical bore 01" passage 33 therethrough, in alinement with the passage 31 of the block 27 and for the passage of the mandrel wire or rod 34, as seen in Fig. 9. The guide member 32 is provided with slots and 36 in its opposite sides. and is located within the slot 28 of the block .27, the slot 35 being tangential to the upper portion of the bore 33, while the opposite slot 36 is tangential with the lower portion of the said bore. The walls 37 and 38 ot' the respective slots and 36 diverge forwardly similar to the walls 36 of the slot 28, the walls 37 and 38 of the respective slots and 36 being preferably flush with the walls 30 of the slot 28. The rear portion of the bore 33 is counter-bored or enlarged, as at39, between the slots 35 and 36, and the respective slots and 36 are tangential with the upper and lower portions or walls of the counter-bore 39. -The inner end of the wall 37 of the slot 35 is extended into a curved or spiral lip 40 leading to the inner end of the slot 36, and passing downwardly around the axis of the bore 33, while the' inner end of the wall 38 of the slot 36 is parts or sections may be suitably secured together.

The two sets or runs or wires 42 and 43 converge rearwardly from suitable spools or reels, (not shown), and pass into the slot 28 of the block 27 along the walls 30 of the said slot. The wires 42 and 43 extend into the respective slots 35 and 36 of the guide member 32 and the slots 35 and 36 are of of tapered rmeaseso wires 42. and the number of wires in'each set be varied.

The forward end of the mandrel wire or rod 34: is anchored to the forward end of the guide 2+ by a swivel. 2nd to this end a sleeve or tubular member 4.; is mounted for rotary movement within an upstanding portion lb at the forward end of the guide 24. the forward end oi the sleeve having an annular flange 4T coiiperating with a ball cup 43 carried by the portion 46. An nular series of ball bearings l are disposed between the flange l7 and the hall race of the cup it to enable the sleeve 45 to rotate freely, the forward 34 being engaged through the sleeve l5 and held against rairward withdrawal. as illustrated in Fig? 7.

or run may three of the wires 43. although secured upon the end of the mandrel wire As a means fol-taking up the twisted' wire as it passes through the armature shaft 3, as will hereinafter appear. there provided a circular, turn-tal le or pan 51 mounted upon a suitable hearing 52 and having the. upturned rim 5; The center of the table or pan 5i is-locatcd at one side of the shaft 3,, and the table or p'an 51 disposed below the said shaft. whereby the twistet wire 50 delivered from the tubular shaft 3 will drop onto the table or pan 51 as indicated in Fig. i, and the table or pan being rotated will :ause the twisted wireto he laid in a spiral manner upon the table or pan 51, as indicated at 50. ln order to permit the twisted wire to be drawn from the taele or pan 51, thetable or pan 51 is provided with a central or upstanding shell 54 of tapered or conical form and around which the inner convolution of the. spiral portion 50 is disposed. The shell Til being or conical form will enable the twisted centr: lly of the table or pan 51, wherebv the twisted wire may be withd awn upward in a convenient manner.

The actuating means for the table or p'an 51 embodies an arm 57 depending from the slide 24, and a rack 58 attached to the lower end of the arm 57 below the bar 1 and inter meshing with -a gear wheel mounted loosely. upon a shaft 30 journaled in a hanger 60. A spring pressed dog or pawl (31 is carried by the gear wheel 59 and is arranged to engage a ratchet wheel (32 keyed or secured in any suitable manner upon the shaft (ill. The raclc 58 projects rearwardly from the arm 57. and the pawl or dog 61 and ratchet wheel 32 are so arranged. that when the rack 58 is moved rearwardly. with the slide 24. the shaft {ill will be rotated and when the rack 58 is' drawn ftn'wardly. the pawl or dog 61 will pass idly around the -atchet wheel 62 without rotating the shaft {30. i i

A pulley wheel (33 is keyed or otherwise wire to be readily drawn therefrom axially I .respei-tive 'lips ill 'onto the mandrel shaft 30. and an endless belt or cable illis trained around the pulley (i l and around a pulley 43.? formed upon or attached to the table or pan 1. the belt or ruble il being readily guided between the p ulle vs ($3 and (i5 by idlers il-i.

ln operation. the mandrel wire 34 which passes through thepassage 31 of the block 27 and the bore 33 of the wire guiding member 32. passes axially through the clutch or twisting head 5 and thence axially into the hollow or tubular shaft 3. The mandrel wire ll is preferably extended completely through the shaft 3, as indieated in Fig. 3 against buckling to hold the twisted wire 50 or distorting while passing through the armature shaft 3. The wires 42 and i i are un wound from suitable spools or reels (not shown) and are lead into the slot 2 of the block :27, and thence through tl1e.respective slots 35 and Elli. The wires l2 and 4-3 are then twisted or coiled around the mandrel wire '34 this being facilitated by the and 41 which serve to lead the wires l2 and +3 wire :54. The mandrel wire 34 having its forward end swiveled to the portion or member 46. may rotate freely as the wire is twisted, but will be prevented from being drawn rearwardly with the twisted wire as the twisted wire is iuterini'ttently fed rcar\\'ardly from the twisting mechanism. Supposing that sullicient wire has been twisted around the mandrel 3% to ie engaged by the rotary clutch head 5 and supposing the parts to b arranged as seen in Fig. 3 with therod 21 moved forwardly so as to move the links 11 forwardly beyond daid center. to thereby lock the clutch or friction shoes h tightly into engagement with the twisted wire extending from the or device 23 through the clutch head 5 into the forward end of the hollow armature shaft 3. then as the armature shaft 3 is rotated. the clutch head 5 will be rotated. therewith and the friction shoes r" tightly embracing the twisted wire so, will rotate the same; This will rause the wires -l-2.and 43 to'be wound or coiled aroundthe mandrel wire Bl. thewires -12 and lit being drawn through the slots 35 and 3b and being properly guided and led upon the mandrel wire I'll, by the walls 37 and 38 of the respective slots 35 and 36, and by the lips 40 and 1H. respectively. In other words. the walls El? and 38 of the respective slots 35 and 36 direct the wires 42 and 43 at the proper angle toward the point where the wires 42 and 43 are" wound or coiled upon the mandrel wire 34-, while the lips 40 and -l1 serve to lay the wires 42 and 43, respectively, in the spiral rooerlv uide or proper heli'al or manner upon th mandrel wire 34.

During the rotation of the twsiting or clutch head 5, which 'auses the wires 01 strands 42 and -13 to be wound upon the mandrel wire 3-: to provide the twisted wire 0. the pitznan 2-" ismoved forwardly by the wrist pin'ZtS. since the worm wheel 12- is continually rotated at the proper velocity, by the worm l5. and the pitman 25 in moving forwardly will move the slide 24 forwardly. This will cause the wire applying device 23 to be moved forwardly as the wires 01' strands Hand 13 are laid and twisted around the mandrel wire 34. During this operation. the twisted .wire 50 is merely rotated by the clutch head 5, but isnot moved longitudinally. while the wire applying device is moved forwardly at the proper velocity to enable the wires or strands 42 and 43 to be properly wound and twisted upon the mandrel wire 3 \Vhen the slide or carriage 2+ has reached the forward end of its stroke. one set of teeth 17 of the mutilated gear 16 which rotates with the worm wheel 13, will engage the corresponding teeth of the mutilated pinion 1H. and will rotate the pinion 18 through one half .of a revolution. This will cause the rod 21 tobe drawn rearwardly, whereby the links 11 "in being pulled rearwardly with the collar 10,

willcause the levers T to be so swung. as to release the friction shoes 8 from the twisted wire 50. Then. when the mutilated pinion 18 stops. the pitmau :25 will be drawn rear wardly so as to move the slide 24 rearwardly. This will cause the wire applying device 23 to be moved 'rearwardlv toward the clutch h ad 5. and as a result. the twist ed wire 50 will he slid reaiwvardlv through the armature shaft 3. and the wire applying devic. 23 wilLbe brought to initial position adjaeent the clutch head 5. lhuging the rearwardi movement of the slide 24, the rack 58 will be. carried rearwardly therewith, so as to rotate the gear wheel 59 and the said gear wheel being rotated will cause the pawl or dog (11 to engage the ratchet wheel 62 to rotate the shaft (30. in this manner. the pulley 23 will be rotated with the shaft 60 and as a result. thetable or pan. 51 will be rotated through n suitable. are, in order that that portion offthe twisted wire 50 projected from the rear' end of the shaft 3, may be properly laid onto the table or pan 51. in this manner, when the slide 2% is moved forwardly to eject the twisted wire .50 from the shaft 3. the table or pan 51 is rotated through a suitable are, for properly laying the twisted wire 50 in a spiral manner upon the table or pan 51, as indicated at 50'. During the forward movement of the slide 24, the gear wheel 59 being rotated in a reverse manner, will merely carry the pawl or dog 61 idly around the ratchet wheel 62 without rotating the shaft 60, and without moving the table or pan 61 in a reverse or retrograde direction. It will therefore be obvious that as the slide 24 is recipl'ocated back and forth during the alternate twisting and rearward feeding of the twisted wire, the transfer table or pan 51 will be intermittently rotated to correspond with the intermittent or step-by-step movement of the twisted wire 50. The twisted wire 50 may be regularly drawn from the table or pan 51. however, .since the twisted wire is carried from the inner convolution of the spiral portion 50 upwardly around the shell 5 L as seen in Fig. 1. and which will enable the twisted wire to be taken from the transfer table or pan 51 without inconvenience. As the twisted wire is taken from the table or pan 51. the convolutions of the spiral portion 50" carried by the table or pan 51, will be drawn inwardly, this being facilitated by the intermittent rotation of the table or pan. The twisted wire may thus be led from the transfer table or pan 51 to a machine for converting the twisted wire into bed springs,

or to form the bed fabric from the twisted wire. After the wire applying device 23 has been moved rearwardly with the slide 24:

to move that-portion of the twisted wire 50 rearwardly which has just been completed; the respecti ye teeth 17 of the. mutilated gear 113 will engage the proper teeth of the mutilated pinion 18 to rotate the pinion through one half of a revolution. and as a'result the rod 30 will .be moved forwardly to throw the inatic in its nature. for applying the wires or strands onto the mandrel wire, for twisting the wire. and for feedmg or dehvermg the wire through the armature shaft 3 onto the transfer table or pan 51, the transfer table or pan being operatively connected to the twisting mechanism to be actuated properly thereby as the twisted wire is delivered. Particular attention is directed to the fact that the hollow armature shaft 3 of the motor 2 provides a guide through which the twisted wire is delivered, the hollow armature shaft also being of advantage since it is comparatively light in weight, and affords ventilation therethrough for cooling the armature. The shaft 3 may also be conveniently rotated at a high velocity by the electric motor 2. it being noted that the slide or carriage 21 which carries the wire applying device 23. is operatively connected to the armature shaft 3, to be opened and closed.

The guide member 32 of the wire applying device 23 is preferably formed of tempered steel or other hard metal capable of withstanding the wear and tear incident to the passage of the wire or strands 42 and 43 through the. guide member. 32 and onto and corresponding parts of thcguide meniiii her 32 are preferably duplicated. as soon in Fig. 11. wherehy when one set oi slots and associate parts are worn out. due to continued use, the guide nnanher 32 may ho readjusted to bring the other sot into play. The guide inem iier 32 having the poruliar slots and lips will serve to prl'iperl v' guide and la the wires or strands l2 and lil upon the mandrel wiro. whilo tho twisted portion is rotated to coil or wind'tho wires or strands onto tho mandrol wire.

The lllfiilll'lClltlOl'l illustrated in Fig". U1. is somewhat simplilioihand includos tho lnlso 1 carrying the motor which hasa hilllow armature shaft '1 through which tho tubular su n'ileniental shaft 3 is feathered so as to ho rotatod thoro-with. Tho shaft 3 is journaled through a pedestal 4- sorured upon the haso l. and tho forward end of the shaft 3 carrios the twisting or clutch hoad Sha'ving thehody or frame l1" secured rigidly to tho. forward end of tho shaft 3 and having the clutch lovors T lulcrumed therotowvhich are adapted to heswung into and out of gripping ong'agemont with the twisted wire Ti l. The 'clutoh head 5 includosa collar 10' feathered upon the forward end portionot thev shaft 5. and links ll connecting the collar 10" and clutch levers l" l'(jl1' swinging the lovers 7' into and out. of rn a' g'o'niont with tho twisted wiro 0' as the collar Ill is moved roarwardly and forwardly, respectively. relativo to tho shaft 3". The shalt is'slidahle through the hollow armature shaft i and through the pedestal l to onahlo tho'clutrh head to move to and from the wire applyin;' dovire 23' whioh is similar to tho-wire applying dovire 23 ahovo dosorihod. A sleeve Zl is slidahle upon a guido rod ll carried hy the podostal -l"and wire applying doviro ill. and tho sloovo 21 has a doponding tori; 22' engaging the groove collar ll). Collars or stops ill aro threadedly or othorwisr ongza zod upon the guiderod 24 for longitudinal adjustments and to ho ongzagz'od hy tho sleeve 21' as tho clutoh head 5 is rociprooated. in order to inovo tho clutch head '3' ,t'm'wardly wh n tho clutch lovors 7' ari'wrolcased from the twisted wire 50, a cahlo 25 is connocthd to a slide 3t)". and is trainod ovor a pulley orguido 26' and has socurod to its lower ond a woigrhtod piston f (l1lSll l")OiJ. 28' ha ing a lower vent 2?). The portion -l-l' is carriod hy the slide 0' aiid tho slido has a pedost-al 3 through which the shalt Ii is iourualod. collars l'fhoin; socurod upon tho shalt i at tho side-sot tho hoxin or hearing of tho podosatal llto causo tho shalt 3f to-slido with tho slide or carriage 30. i

111th; operation of thoznoditiud form. tho

working snugly within an upright ong'an'emont with tho twislod wiro Ta). "111;: tho rearward movemont ot' lho olutoh head .3 and slide ll) the piston Ii" will he clutch head 3 is movahlo hark and 'lorth instaid ot tho wiro applying device as in tho prel'orrod torm aliovo dosrrihod. Supposing wound upon the mandrol wiro Ill n the wire appl vm; doviro 2 3'. will onustho rlutrh hoad 5 to ho tori-rd rearward as tho.

wiros or strands aro wound upon tho mandrel wiro. Tlltll, whon tho rlutrh hoad 5 is niovod roarwardly sulliriontly to hring the sloovo Zl into rontart with tho roar stop Zlfl tho collar ll)" will ho stopped roarward movement. while the rlutrh lovers T will rontinuo to movo roarwardly slightly; so that thoy will ho thrown out ol gripping Dur- ra is-od with-in tho dash pol 2H. 'l'ho rlutrl lovors T hointr roloasod from the twisted wiro 50 will permit tho olutrh head 5 to he drawn 'l'orwardly with tho slide ll) and shaft 3. duo to the weight of tho piston 27'. The piston 27 gravitation within the dash pot 39' will thus draw tho slido 30' l'orwardly to initial position. After tho clutch head 5 has been movod forwardly so that the sloovo 25 contacts with tho forward stop Lil. tho movomont of tho oollar ll will he arrosted. and tho oxoossivo forward movement of tho clutch lovers 7 tarriod hy the body or frame l3. will rauso the olul'oh lovers to he swung into gripping engagement with tho twisted wire 50'. As a result. the twist ing operation will he rosumed. and tho olutoh head 5 will ho movod rearwardly as ahoyo intiniatod. ll will he noted that when-tho shaft '3" is moved roarwardlv with tho rlutrh hoad 5'. the ooilod wire '50 will he moved roarwardlr therewith oil of tho inandrol I; while when tho rlutrh hoad 5 and, shaft 3" aro drawn forwardly. the twisted wire 50 will romain stationary. and as a rosult. the twistod wire will ho moved roarwardly rolativo to the shaft 3 to dolivor the twistod wiro from tho roar end of the shaft 3.

in Fig. 17. there is illustratod a modiiiod Form of morhanisn'l for actuating the slide or carriage 2i and for aotuatint' the olaich hoad 5 of tho prolorrod lorm of tho invention. in this modification. tho worm wheel 13' ('arrios a mutilated Qoar l6 which rooporatos with a mutilated pinion id" to rotato the pinion 18 through a complete revolution at tho propor intorvals; disk 19* ird'hy tho pinion l8 and l as a wrist to which tho pitn'ian 2'3"is ronn'ocl: od. "iho pilman 25 i2; oonnortod to tho roar ond of a slido'2l whirh has a shit-Ell into which a pin Bl" projorts troni the slide or in its its carriageQ-l. The slide 24 is provided with a notch 20" receiving one end of a lever '10" which is connected to the rod 21 for actuating the clutch head 5.

\Vith the modilied form illustrated in Fig. 17, the slide or carriage is moved forwardly by the winding of the wires or strands upon th mandrel wire 34. which will cause the. wire applying device :23 to be moved forwardly. as will be apparent. During the forward movement of the carriage 24. the pinion 18 will be held so that the wrist pin 21 is at its foremost position. to hold the slide .Z-l" at the forward end of its allotted movement. Then. as the carriage 24 moves forwardly. the pin or lug 24 of the carriage 24 will move forwardly within the slot 24". but the slot Z-l" is sufiiciently long. so that the pin or lug 24* will not reach the forward end of the slot 24" when the carriage 24 is moved completely forward. This allows of. a slight rearward movement of the slide Z-l" before the forward end of the slot 24" engages the pin or lug il Xow. after the carriage 24 has been moved forwardly the teeth of the mutilated gear 16" will engage the teeth of the pinion 18 to rotate the disk 18" through a complete revolution. During the first half of the revolution of the disk 18''. the pitman 25" will be drawn rearwardly to move the slide 2 1- rearwardly. and as a result. the notch 20 will swing the lever 20 in such a manner as to release the clutch head 5 from the twisted wire 50. Then, during the remaining half of the complete revolution of the disk 18*. the pitman 35" will again be moved forwa rdl v to return the slide 24" quickly to its forward position and to return the lever 20" to its original position for throwing the clutch head 5 into frictional engagement with the twisted wire 50 to continue the twisting opemtion. In the meantime. the rearward movement of the slide '24 will havenioved the slot 24 forwardly so as to enable the carriage :2} to move forwardly without interference.

Having thus described the invention ,what is claimed as new 1. In a wire working machine. a hollow rotary shaft, a mandrel entering the shaft, a wire applying device cooperating with-the mandrel. the said shaft and wire applying device, being movable to and from each other, a clutch head carried by the said shaft and having in ans for gripping the twisted wire, and means for bringing the clutch head into and out of engagement with the twisted wire.

motor having a hollow arinature-shaft' la mandrel entering the saidi'shaftha 31 m plying device cooperating with the inandrel. said shaft and wire. applying device being movable to and from each mther, a clutch head carried by the said'shaft and having means for gripping the twisted wire, and means for bringing the said means of the clutch head into and out of engagement with the twisted wire.

In a wire working machine. a rotary hollow shaft. :1 wire twisting device operabl v connected thereto and arranged to deliver the twisted wire through the said shaft, a rotary table operably connected to the said shaft to be advanced as the twisted wire is delivered from the said shaft. the table being arranged to receive the twisted wire in a spiral manner thereon. and having a central guide through which the twisted w1re may be extended from the inner convolution of the spiral portion.

l. Ina wire twisting"machine. a rotary hollow shaft, a mandrel extending into the. shaft. a wire applying device cooperating with the mandrel, the shaft and wire applying device being movable to and from each other. a clutch head carried by the shaft and adapted to grip the twisted wire upon the -n|andrel. means for bringing the clutch head into and out of engagement. with the twisted wire. a turntable arranged to receive the twisted wire delivered from the said shaft. the turntablehaving a central guide for leading the twisted wire from the table, and -means operatively connecting the table and said shaft for intermittently rotating the tabl as the twisted wire is delivered through the said shaft.

5. In a wire twisting machine. a mandrel. and a wire applying device including a guide member having a bore through which the mandrel is passed, and'having opposite slots for the passage of the wires. the said slots being tangential with opposite portions of the said bore, the said slots having diverging walls extending from the said bore for guiding the wire therealong to the mandrel.

(3. In a wire twisting machine, a mandrel, and a wire applying device includinga guide member having a borev through which the mandrel is passed, and having opposite slots for the passage of wires, the said slots being tangential with opposite portions of the said bore. the said guide member having lips extended from the inner ends of the said slots partially around the mandrel in such a direction as to lay the respective wires in the proper helical manner upon the mandrel.

T. In a wire twisting machine, a mandrel. and a wire applying device including a guide member having a here through which the I, iniandrel extends. the guide member having 2. In a wire twisting machine. an electric ol'mosite" slots for the passage of the two sets of wires; the said slots having diverging walls extending from the said bore for guiding the respective wires at the proper angle to the mandrel, the slots being tangential with opposite portions of the said bore'and the said guide member having curved lips extended from the inner ends of the said walls partially around the mandrel for lay-' ing the wires in a helical manner upon the mandrel.

8. In a wire twisting machine, a mandrel,

and a wire applying device embodying a block having a horizontal slot, an upwardly 9. A mechanism of the type. described, in-- eluding an electric motor with an armature tubular shaft, a mandrel, said shaft being arranged to receive a plurality of strands and for the passage longitudinally therethrough of said strands, said mandrel being arranged to receive said strands for etlecting the twisting of the same, and a clutch arranged to automatically grip said strands to said mandrel during the twisting of said strands.

10. A mechanism of the type described, including a motor with its shaft, a mandrel. said shaft being arrangedto receive a plurality of strands or wires-and for the passage longitudinally therethrough of said strands, said mandrel being arranged to have said strands delivered thereon for effecting the twisting thereof, and means for directly gripping the coiled or twisted wire. to the mandrel from the motor shaft, whereby the same or uniform speed is directly transmitted to the wire coil and mandrel.

11. In a wire working machine, a rotary clutch head adapted for the passage of twisted wiretherethrough and arranged to grip and rel ease said wire. a mandrel upon which the wire is arranged to he twisted by said clutch head, a wire applying device cooperating with said mandrel, the clutch head and wire applying device being movable to and from each other, and means for bringing the clutch head into and out of engagement with the wire.

12. In a wire working machine, a rotary clutch head adapted for the passage of twisted wire therethrough and arranged to grip and release said wire, a mandrel upon which the wire is arranged to be twisted by said clutch head, a wire applying device cooperating with said mandrel, the clutch head and wire applying device being movable to and from each other, and means for automatically bringing the clutch head into and out of engagement with the twisted wire when theelutch head and wire applying device move away from and toward each other, respectively.

13. In a wire working machine, a rotary clutch head adapted for .the passage of twisted wire therethrough and having means for gripping the twisted wire. wire feeding means coiiperable with the clutch head, the clutch head and wire feeding means being movable relative to one another, and means for bringing the gripping means of the clutch head into and out-of engagement with the twisted wire.

14. In a. wire working machine, a rotary clutch head adapted for the passage of twisted wire therethrough and having means for gripping the twisted wire, wire feeding lllllIlS cooper-able with the clutch head, the clutch head and wire feeding means being movable relative to one another, and ,means for automatically bringing the gripping means of the clutch head into and out of engagement with the twisted wire when the clutch head and feeding means mov away from and toward one another, respectively.

In testimony that I claim thefforegoiug as my own. I have hereto affixed my signature in the presence. of two witnesses.

. GARY R. QMITH.

' Witnesses:

In E. Snrrsox. Minna): hloonn. 

